Add an Inbox setting to send the user a copy of messages that they send.

docs/changelog/7.x.x.txt

@@ -24,6 +24,7 @@
  - Added: United States Postal Service Shipping Driver.
  - Refactored transaction tmpl_var generation into WebGUI::Shop::Transaction. ( Martin Kamerbeek / Oqapi )
  - rfe #9906: Inbox Filtering
+ - rfe #9911: Inbox: Copy Sender
 
 7.7.5
  - Adding StoryManager.

docs/upgrades/upgrade_7.7.5-7.7.6.pl

@@ -37,6 +37,7 @@ addShippingDrivers( $session );
 addTransactionTaxColumns( $session );
 addListingsCacheTimeoutToMatrix( $session );
 addSurveyFeedbackTemplateColumn( $session );
+installCopySender($session);
 
 finish($session); 
 
@@ -146,6 +147,14 @@ sub addSurveyFeedbackTemplateColumn {
 
 }
 
+#----------------------------------------------------------------------------
+# Your sub here
+sub installCopySender {
+    my $session = shift;
+    return if $session->setting->has('inboxCopySender');
+    $session->setting->add('inboxCopySender',0);
+}
+
 # -------------- DO NOT EDIT BELOW THIS LINE --------------------------------
 
 #----------------------------------------------------------------------------